CPALMS
Florida State University Cpalms: Florida Students: Earth's Spheres
Check out the tutorial which introduces the Earth's spheres. Viewers should be able to identify the Geosphere, Biosphere, Atmosphere, Hydrosphere and Cryosphere and know their differences and similarities.
Science Education Resource Center at Carleton College
Serc: Earth System Science
Students learn to identify the parts of the Earth system and the processes that connect them. They look for interconnections among components of the Earth system at the local level, using a study site close to their school.